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加拿大草原地区使用的耙齿的结构分析与疲劳预测。

Structural analysis and fatigue prediction of harrow tines used in Canadian prairies.

作者信息

Rahman Arafater, Khondoker Mohammad Abu Hasan

机构信息

Industrial Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, 3737 Wascana Pkwy, Regina, SK S4S Canada.

出版信息

Discov Appl Sci. 2024;6(11):613. doi: 10.1007/s42452-024-06310-5. Epub 2024 Nov 14.

DOI:10.1007/s42452-024-06310-5
PMID:39553408
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11564268/
Abstract

UNLABELLED

The Canadian prairies are renowned for their substantial agricultural contributions to the global food market. Harrow tines are indispensable in farming equipment, especially for soil preparation and weed control before planting crops. During operation, these tines are exposed to repetitive cyclic loading, which eventually causes fatigue failure. Commercially available three different harrow tines named 0.562HT, 0.625HT, and 0.500HT undergo an experimental fatigue evaluation and are validated through Finite Element Analysis (FEA). Fatigue life estimation for different deflections under various real-field deflections was carried out where 0.562HT showed groundbreaking life compared with others. The study results showed that the fatigue life is highly dependent on geometry, number of coils, pitch angle, leg length, and coil diameter. The 0.354HT model, developed to investigate the effect of wire diameter, closely resembles the 0.500HT model. The harrowing ability of the four different harrow tine models against identical deflections has been analyzed. Experimental fractured surfaces went through morphological investigation. This research has an impeccable impact on prairies' agricultural acceleration by saving time and mitigating unpredictable fatigue failure often faced by farmers. Even the observed failure phenomena can serve as motivation to develop more reliable and durable harrow tines, which could increase agricultural efficiency.

SUPPLEMENTARY INFORMATION

The online version contains supplementary material available at 10.1007/s42452-024-06310-5.

摘要

未标注

加拿大大草原以其对全球粮食市场的巨大农业贡献而闻名。耙齿在农业设备中不可或缺，特别是在种植作物前进行土壤准备和除草时。在作业过程中，这些耙齿会受到反复的循环载荷，最终导致疲劳失效。对市售的三种不同耙齿0.562HT、0.625HT和0.500HT进行了疲劳试验评估，并通过有限元分析（FEA）进行了验证。针对各种实际田间挠度下的不同挠度进行了疲劳寿命估计，其中0.562HT与其他耙齿相比表现出开创性的寿命。研究结果表明，疲劳寿命高度依赖于几何形状、线圈数量、螺距角、支腿长度和线圈直径。为研究钢丝直径的影响而开发的0.354HT模型与0.500HT模型非常相似。分析了四种不同耙齿模型在相同挠度下的耙地能力。对实验断裂表面进行了形态学研究。这项研究通过节省时间和减轻农民经常面临的不可预测的疲劳失效，对大草原的农业加速发展产生了无可挑剔的影响。即使观察到的失效现象也可以作为开发更可靠、更耐用耙齿的动力，这可以提高农业效率。

补充信息

在线版本包含可在10.1007/s42452-024-06310-5获取的补充材料。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/d37ef3e61b19/42452_2024_6310_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/2a6cd87b768f/42452_2024_6310_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/d7a2eddaa10a/42452_2024_6310_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/9e0f7cff3462/42452_2024_6310_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/8bac66e26f03/42452_2024_6310_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/ab4eb692680b/42452_2024_6310_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/ebf5da8d818e/42452_2024_6310_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/8446c667b7f8/42452_2024_6310_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/d37ef3e61b19/42452_2024_6310_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/2a6cd87b768f/42452_2024_6310_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/d7a2eddaa10a/42452_2024_6310_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/9e0f7cff3462/42452_2024_6310_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/8bac66e26f03/42452_2024_6310_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/ab4eb692680b/42452_2024_6310_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/ebf5da8d818e/42452_2024_6310_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/8446c667b7f8/42452_2024_6310_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d66d/11564268/d37ef3e61b19/42452_2024_6310_Fig8_HTML.jpg

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本文引用的文献

1
Integrated weed management (IWM): why are farmers reluctant to adopt non-chemical alternatives to herbicides?杂草综合治理（IWM）：为什么农民不愿意采用非化学除草剂替代物？
Pest Manag Sci. 2019 May;75(5):1205-1211. doi: 10.1002/ps.5267. Epub 2019 Jan 7.